Dublin weather in October

In October, Dublin sees average daytime highs of 13°C and overnight lows near 8°C, with 78 mm of rain across 12.4 wet days and about 10.3 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 12°C by the end. The sky is clear or mostly clear about 11% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of October to 9 h 18 min by month's end. Set against the rest of the year, October is Dublin's 6th-clearest and 6th-windiest month. For the whole year in context, see Dublin's year-round climate.

Daytime high
13°
6th warmest
Overnight low
8th coldest
Rainfall
78 mm
12.4 wet days
Daylight
10 h 18 min
7:02 AM – 5:18 PM
Cloud cover
75%
6th clearest
Wind
17 km/h
6th windiest
Solar energy
1.72 kWh/m²
Travel score
3.2
out of 10

Dublin is capital and largest city of Ireland.

Founded
~841 CE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 14°C in the first days to 12°C by the end.

A typical October day in Dublin reaches about 13°C in the afternoon and slips back to 8°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 16°C. Set against its neighbours, October runs about 3°C cooler than September and about 3°C warmer than November.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1149
2149
3149
4149
5149
6149
7149
8149
9149
10139
11139
12138
13138
14138
15138
16138
17138
18138
19128
20128
21128
22128
23127
24127
25127
26127
27127
28127
29127
30117
31117

How October really feels in Dublin

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Dublin weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6913.20.97.81.0
Feb / 5711.81.29.41.1
Mar / 5912.21.111.51.7
Apr11° / 6613.80.113.72.4
May14° / 6613.6015.63.5
Jun16° / 10°7313.2016.64.5
Jul18° / 12°7614.8016.24.9
Aug18° / 12°7813.7014.65.1
Sep16° / 10°7012.3012.44.5
Oct13° / 7812.4010.33.2
Nov10° / 8513.20.38.41.9
Dec / 7612.90.87.41.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32476
42476
52476
62575
72575
82674
92674
102773
112773
122773
132872
142773
152773
162773
172872
182872
192773
202872
212773
222773
232872
242674
252674
262674
272674
282773
292674
302674
312674

Chance of precipitation in October

Any precipitation

Dublin gets around 78 mm of rain over 12.4 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
242
341
441
540
639
739
838
937
1037
1137
1236
1337
1437
1537
1638
1739
1839
1940
2041
2141
2242
2342
2443
2543
2643
2743
2843
2943
3043
3143

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1919
2919
3928
4928
5937
6937
7946
8946
9946
10955
11955
12964
13964
14964
15964
16973
17973
18973
19973
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30982
31982

Wind in October

Winds average 17 km/h in October.

Across October, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 18 min at the start of October to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over October. Sunrise moves from 6:34 AM to 7:31 AM, and sunset from 5:54 PM to 4:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:345:54
211.36:365:51
311.26:385:49
411.16:405:47
511.06:415:44
611.06:435:42
710.96:455:39
810.86:475:37
910.86:495:34
1010.76:515:32
1110.66:535:30
1210.56:545:27
1310.56:565:25
1410.46:585:23
1510.37:005:20
1610.37:025:18
1710.27:045:16
1810.17:065:14
1910.17:085:11
2010.07:105:09
219.97:125:07
229.97:135:05
239.87:155:03
249.77:175:00
259.77:194:58
269.67:214:56
279.57:234:54
289.57:254:52
299.47:274:50
309.37:294:48
319.37:314:46

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.72 kWh/m².

For context, solar energy here swings from a low near 0.56 kWh/m² to a high of 5.27 kWh/m² in June across the year — October's 1.72 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.2Moderate
32.2Moderate
42.1Moderate
52.1Moderate
62.1Moderate
72.0Moderate
82.0Dim
92.0Dim
101.9Dim
111.9Dim
121.9Dim
131.8Dim
141.8Dim
151.8Dim
161.7Dim
171.7Dim
181.7Dim
191.6Dim
201.6Dim
211.6Dim
221.5Dim
231.5Dim
241.5Dim
251.4Dim
261.4Dim
271.4Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in October

Is October a good time to visit Dublin?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.2
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Dublin.

What to pack for Dublin in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Dublin sees daytime highs around 13°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Dublin in October

The nearest coast averages about 13°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 15°C and coldest in March near 8°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul15Bracing
Aug15Cool
Sep15Bracing
Oct13Bracing
Nov12Bracing
Dec11Bracing

UV index in Dublin in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dublin peaks around August 13 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Dublin?

Dublin sits at 53.3°N, 6.2°W, 17 m above sea level, in Ireland. The nearest listed city is Rathfarnham, 4.0 km away.

Topography around Dublin

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Dublin.

Within 3 km, the terrain around Dublin has only modest variations in elevation — a maximum elevation change of 56 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 651 m; within 80 km, large variations in elevation — a maximum elevation change of 946 m.

The land around Dublin is covered by artificial surfaces (68%) within 3 km, grassland (29%), artificial surfaces (24%) and water (22%) within 16 km, and grassland (51%) and water (28%) within 80 km.

3 km
56 m
16 km
651 m
80 km
946 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Rathfarnham 4.0 km · Templeogue 6.0 km · Sandyford 7.0 km · Finglas 7.0 km · South Dublin 8.0 km · Dún Laoghaire 9.0 km · Donaghmede 9.0 km · Tallaght 10 km

Ireland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$131,592
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic 69%none 15%Protestant 4%Orthodox 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Dublin (53.3331°, -6.2489°, elevation 17 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).